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c49b292d03
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE+soXsSLHKoYyzcli6rmadz2vbToFAmWAz2EACgkQ6rmadz2v bToqrw/9EwroZCc8GEHOKAlb/fzrMvn92rLo0ZW/cGN84QJPnx4zM6Zo0+fgLaaN oqqztwMUwdzGC3uX3FfVXaaLKbJ/MeHeL9BXFZNW8zkRHciw4R7kIBhOdPnHyET7 uT+rQ4xPe1Mt7e9PjepKlSL5mEsxWfBkdUgsdn19Z2Vjdfr9mZMhYWYMJGcfTCD1 TwxHKBPhq5fN3IsshmMBB8IrRp1HStUKb65MgZ4dI22LJXxTsFkx5XMFXcmuqvkH NhKj8jDcPEEh31bYcb6aG2Z4onw5F2lquygjk1Qyy5cyw45m/ipJKAXKdAyvJG+R VZCWOET/9wbRwFSK5wxwihCuKghFiofK52i2PcGtXZh0PCouyZZneSJOKM0yVWKO BvuJBxK4ETRnQyN6ZxhuJiEXG3/YMBBhyR2TX1LntVK9ct/k7qFVzATG49J39/sR SYMbptBRj4a5oMJ1qn0nFVEDFkg0jTnTDNnsEpcz60Ayt6EsJ1XosO5yz2huf861 xgRMTKMseyG1/uV45tQ8ZPzbSPpBxjUi9Dl3coYsIm1a+y6clWUXcarONY5KVrpS CR98DuFgl+E7dXuisd/Kz2p2KxxSPq8nytsmLlgOvrUqhwiXqB+TKN8EHgIapVOt l1A5LrzXFTcGlT9MlaWBqEIy83Bu1nqQqbxrAFOE0k8A5jomXaw= =stU2 -----END PGP SIGNATURE----- Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Alexei Starovoitov says: ==================== pull-request: bpf-next 2023-12-18 This PR is larger than usual and contains changes in various parts of the kernel. The main changes are: 1) Fix kCFI bugs in BPF, from Peter Zijlstra. End result: all forms of indirect calls from BPF into kernel and from kernel into BPF work with CFI enabled. This allows BPF to work with CONFIG_FINEIBT=y. 2) Introduce BPF token object, from Andrii Nakryiko. It adds an ability to delegate a subset of BPF features from privileged daemon (e.g., systemd) through special mount options for userns-bound BPF FS to a trusted unprivileged application. The design accommodates suggestions from Christian Brauner and Paul Moore. Example: $ sudo mkdir -p /sys/fs/bpf/token $ sudo mount -t bpf bpffs /sys/fs/bpf/token \ -o delegate_cmds=prog_load:MAP_CREATE \ -o delegate_progs=kprobe \ -o delegate_attachs=xdp 3) Various verifier improvements and fixes, from Andrii Nakryiko, Andrei Matei. - Complete precision tracking support for register spills - Fix verification of possibly-zero-sized stack accesses - Fix access to uninit stack slots - Track aligned STACK_ZERO cases as imprecise spilled registers. It improves the verifier "instructions processed" metric from single digit to 50-60% for some programs. - Fix verifier retval logic 4) Support for VLAN tag in XDP hints, from Larysa Zaremba. 5) Allocate BPF trampoline via bpf_prog_pack mechanism, from Song Liu. End result: better memory utilization and lower I$ miss for calls to BPF via BPF trampoline. 6) Fix race between BPF prog accessing inner map and parallel delete, from Hou Tao. 7) Add bpf_xdp_get_xfrm_state() kfunc, from Daniel Xu. It allows BPF interact with IPSEC infra. The intent is to support software RSS (via XDP) for the upcoming ipsec pcpu work. Experiments on AWS demonstrate single tunnel pcpu ipsec reaching line rate on 100G ENA nics. 8) Expand bpf_cgrp_storage to support cgroup1 non-attach, from Yafang Shao. 9) BPF file verification via fsverity, from Song Liu. It allows BPF progs get fsverity digest. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (164 commits) bpf: Ensure precise is reset to false in __mark_reg_const_zero() selftests/bpf: Add more uprobe multi fail tests bpf: Fail uprobe multi link with negative offset selftests/bpf: Test the release of map btf s390/bpf: Fix indirect trampoline generation selftests/bpf: Temporarily disable dummy_struct_ops test on s390 x86/cfi,bpf: Fix bpf_exception_cb() signature bpf: Fix dtor CFI cfi: Add CFI_NOSEAL() x86/cfi,bpf: Fix bpf_struct_ops CFI x86/cfi,bpf: Fix bpf_callback_t CFI x86/cfi,bpf: Fix BPF JIT call cfi: Flip headers selftests/bpf: Add test for abnormal cnt during multi-kprobe attachment selftests/bpf: Don't use libbpf_get_error() in kprobe_multi_test selftests/bpf: Add test for abnormal cnt during multi-uprobe attachment bpf: Limit the number of kprobes when attaching program to multiple kprobes bpf: Limit the number of uprobes when attaching program to multiple uprobes bpf: xdp: Register generic_kfunc_set with XDP programs selftests/bpf: utilize string values for delegate_xxx mount options ... ==================== Link: https://lore.kernel.org/r/20231219000520.34178-1-alexei.starovoitov@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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